| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] not [adv] [verb] that | 68 |
|
| 2 | it [be] not [adv] [vb pp] that | 35 |
|
| 3 | it [be] not [adv] known [conj] | 30 |
|
| 4 | it [be] [adv] [adv] known that | 22 |
|
| 5 | it [be] not [adv] known that | 7 |
|
| 6 | it [be] not [adv] know that | 7 |
|
| 7 | [pron] [be] not [adv] known that | 7 |
|
| 8 | it [be] not [adv] known [that] | 7 |
|
